/* Common configuration file for NetBSD a.out targets.
Copyright (C) 2002 Free Software Foundation, Inc.
Contributed by Wasabi Systems, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. *//* TARGET_OS_CPP_BUILTINS() common to all NetBSD a.out targets. */
#defineNETBSD_OS_CPP_BUILTINS_AOUT() \
do \
{ \
NETBSD_OS_CPP_BUILTINS_COMMON(); \
} \
while (0)
/* This defines which switch letters take arguments. */
#undefSWITCH_TAKES_ARG
#defineSWITCH_TAKES_ARG(CHAR) \
(DEFAULT_SWITCH_TAKES_ARG(CHAR) \
|| (CHAR) == 'R')
/* Provide an ASM_SPEC appropriate for NetBSD. Currently we only deal
with the options for generating PIC code. */
#undefASM_SPEC
#defineASM_SPEC"%{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#defineAS_NEEDS_DASH_FOR_PIPED_INPUT/* Provide a STARTFILE_SPEC appropriate for NetBSD a.out. Here we
provide support for the special GCC option -static. */
#undefSTARTFILE_SPEC
#defineSTARTFILE_SPEC \
"%{!shared: \
%{pg:gcrt0%O%s} \
%{!pg: \
%{p:mcrt0%O%s} \
%{!p: \
%{!static:crt0%O%s} \
%{static:scrt0%O%s}}}}"/* Provide a LINK_SPEC appropriate for NetBSD a.out. Here we provide
support for the special GCC options -static, -assert, and -nostdlib. */
#undefNETBSD_LINK_SPEC_AOUT
#defineNETBSD_LINK_SPEC_AOUT \
"%{nostdlib:-nostdlib} \
%{!shared: \
%{!nostdlib: \
%{!r*: \
%{!e*:-e start}}} \
-dc -dp \
%{static:-Bstatic}} \
%{shared:-Bshareable} \
%{R*} \
%{assert*}"/* Default LINK_SPEC. */
#undefLINK_SPEC
#defineLINK_SPEC NETBSD_LINK_SPEC_AOUT
/* Some imports from svr4.h in support of shared libraries. *//* Define the strings used for the .type, .size, and .set directives.
These strings generally do not vary from one system running NetBSD
to another, but if a given system needs to use different pseudo-op
names for these, they may be overridden in the file included after
this one. */
#undefTYPE_ASM_OP
#undefSIZE_ASM_OP
#undefSET_ASM_OP
#defineTYPE_ASM_OP"\t.type\t"
#defineSIZE_ASM_OP"\t.size\t"
#defineSET_ASM_OP"\t.set\t"/* This is how we tell the assembler that a symbol is weak. */
#undefASM_WEAKEN_LABEL
#defineASM_WEAKEN_LABEL(FILE,NAME) \
do \
{ \
fputs ("\t.globl\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); \
fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); \
} \
while (0)
/* The following macro defines the format used to output the second
operand of the .type assembler directive. Different svr4 assemblers
expect various different forms of this operand. The one given here
is just a default. You may need to override it in your machine-
specific tm.h file (depending on the particulars of your assembler). */
#undefTYPE_OPERAND_FMT
#defineTYPE_OPERAND_FMT"@%s"/* Write the extra assembler code needed to declare a function's result.
Most svr4 assemblers don't require any special declaration of the
result value, but there are exceptions. */
#ifndefASM_DECLARE_RESULT
#defineASM_DECLARE_RESULT(FILE, RESULT)
#endif/* These macros generate the special .type and .size directives which
are used to set the corresponding fields of the linker symbol table
entries in an ELF object file under SVR4 (and a.out on NetBSD).
These macros also output the starting labels for the relevant
functions/objects. *//* Write the extra assembler code needed to declare a function properly.
Some svr4 assemblers need to also have something extra said about the
function's return value. We allow for that here. */
#undefASM_DECLARE_FUNCTION_NAME
#defineASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do \
{ \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
} \
while (0)
/* Write the extra assembler code needed to declare an object properly. */
#defineASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do \
{ \
HOST_WIDE_INT size; \
\
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
\
size_directive_output = 0; \
if (!flag_inhibit_size_directive \
&& (DECL) && DECL_SIZE (DECL)) \
{ \
size_directive_output = 1; \
size = int_size_in_bytes (TREE_TYPE (DECL)); \
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
} \
\
ASM_OUTPUT_LABEL (FILE, NAME); \
} \
while (0)
/* Output the size directive for a decl in rest_of_decl_compilation
in the case where we did not do so before the initializer.
Once we find the error_mark_node, we know that the value of
size_directive_output was set
by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
#undefASM_FINISH_DECLARE_OBJECT
#defineASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
do \
{ \
constchar *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
HOST_WIDE_INT size; \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
&& ! AT_END && TOP_LEVEL \
&& DECL_INITIAL (DECL) == error_mark_node \
&& !size_directive_output) \
{ \
size_directive_output = 1; \
size = int_size_in_bytes (TREE_TYPE (DECL)); \
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
} \
} \
while (0)
/* This is how to declare the size of a function. */
#undefASM_DECLARE_FUNCTION_SIZE
#defineASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
do \
{ \
if (!flag_inhibit_size_directive) \
ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
} \
while (0)